#backTop {
    width: 0.8rem;
    height: 0.8rem;
    line-height: 0.8rem;
    border-radius: 50%;
    background-color: rgba(0, 0, 0, 0.6);
    position: fixed;
    right: 0.3rem;
    bottom: 1.3rem;
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 99;
}

#backTop .goback_icon {
    font-size: 0.3rem;
    /* color: rgb(45, 105, 235); */
    color: white;
}